| Variable | Infection Mean ± SD |
No Infection Mean ± SD |
t test | P value |
|---|---|---|---|---|
| Age (years) | 58.4 ± 17.6 | 58.1 ± 14.4 | 0.06 | 0.9 |
| Hospital stay (days) before ICU admission | 2.8 ± 5.0 | 4.2 ± 7.5 | 0.7 | 0.4 |
| ICU stay days | 15.7 ± 9.6 | 6.4 ± 5.4 | 6.9 | 0.000 |
| APACHE II score* | 13.8 ± 6.8 | 9.8 ± 6.7 | 2.4 | 0.02 |
| CVC days | 15.7 ± 9.6 | 6.0 ± 5.2 | 7.5 | 0.000 |